But there is not in every man that knowledge: for some with conscience about the idol unto this hour eat it as a thing offered unto an idol; and their conscience being weak is defiled.
All Commentaries on 1 Corinthians 8:7 Go To 1 Corinthians 8
Tertullian of Carthage
AD 220
But, so sinning, by shocking the weak consciences of the brethren thoroughly, they will sin against Christ."